Today's high and low tide times for Chatham, MA, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Chatham, MA, the next high tide is at 4:18 AM (7.1ft) and the next low tide is at 11:09 AM (0.6ft), based on harmonic predictions for Chatham Harbor, Aunt Lydias Cove.
All high and low tides for Chatham today, in local time (America/New York). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Chatham.
| Date | Tides (local time · height) |
|---|---|
| Sun, Nov 1 | H 4:18 AM 7.1ftL 11:09 AM 0.6ftH 4:54 PM 5.7ftL 11:15 PM 1.0ft |
| Mon, Nov 2 | H 5:18 AM 6.9ftL 12:09 PM 0.7ftH 5:57 PM 5.7ft |
| Tue, Nov 3 | L 12:18 AM 1.1ftH 6:18 AM 6.7ftL 1:09 PM 0.7ftH 7:00 PM 5.8ft |
| Wed, Nov 4 | L 1:24 AM 1.0ftH 7:21 AM 6.6ftL 2:06 PM 0.6ftH 8:00 PM 6.0ft |
| Thu, Nov 5 | L 2:24 AM 1.0ftH 8:21 AM 6.5ftL 3:00 PM 0.6ftH 8:57 PM 6.2ft |
| Fri, Nov 6 | L 3:24 AM 0.8ftH 9:18 AM 6.4ftL 3:51 PM 0.6ftH 9:48 PM 6.4ft |
| Sat, Nov 7 | L 4:18 AM 0.7ftH 10:12 AM 6.3ftL 4:39 PM 0.6ftH 10:36 PM 6.5ft |
| Sun, Nov 8 | L 5:09 AM 0.7ftH 11:00 AM 6.1ftL 5:24 PM 0.7ftH 11:24 PM 6.6ft |
Predicted for Chatham Harbor, Aunt Lydias Cove, 1 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Chatham.
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